Using the Ion Comp R front bike light is a breeze. To turn it on, just press the power button. You can cycle through the five lighting modes by pressing the button again. For the Daytime Running Light mode, keep pressing until you see the appropriate light pattern. When using it, make sure the light is securely attached to your bike to prevent it from falling off during rides. Avoid exposing the light to extreme temperatures or heavy water immersion. To maintain its performance, clean the light regularly with a soft, dry cloth. If the light seems dim, it's time to recharge the battery. Simply use the provided charging cable to plug it into a power source.